Re: Get Vista UAC is enable or not

From:
"David Ching" <dc@remove-this.dcsoft.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 27 Feb 2007 15:36:20 GMT
Message-ID:
<UdYEh.3033$8x.2001@newssvr14.news.prodigy.net>
"Mark Lindner" <Mark.Lindner@te-service.org> wrote in message
news:u6qTsTjWHHA.4384@TK2MSFTNGP02.phx.gbl...

i search a way in c++ to know if uac of vista is enable. Is there any
interface for uac?


See
http://groups.google.com/group/microsoft.public.windows.vista.security/browse_frm/thread/a79dd34ea94c4a12/557188c17d88d576?lnk=st&q=uac+API&rnum=8#557188c17d88d576

I am unable to find an API to do this. However, checking the value of this
key works:
Hive: HKLM
Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Value: EnableLUA
Type: REG_DWORD
Data: 1 (Default, enabled)
         0 (Disabled)

Also
http://www.feedshow.com/show_items-feed=354ec2fc35be7c00260a14f6216f5a36, it
says:

There are times you may want to know if the OS will decide to launch the
application elevated. For example, you may want to warn user before launch
the application.

There is no direct API for this. But there is an alternative way to
determine so:

Call CreateProcess() with dwCreationFlags as CREATE_SUSPENDED. If the
application requires elevation, CreateProcess will fail, and GetLastError()
will return ERROR_ELEVATION_REQUIRED.

-- David (MVP)

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